getters: removing requests when uncached.

[pakkographic]

• Add Uncached
• Message#member doesn't return Promise<Member>, User, undefined anymore. It returns Member or Uncached.
• Deprecate Doc#memberID in favor of Doc#creatorID
• Doc#member doesn't return a promise anymore.
• ForumThreadComment#member doesn't return promise anymore.
• ListItem#member doesn't return promise anymore.
• Deprecate ListItem#memberID in favor of ListItem#creatorID
• MemberInfo#member and MemberInfo#guild doesn't return promise anymore.
• Member#guild doesn't return promise when uncached anymore.
• ForumThread#guild doesn't return promise when uncached anymore.
• BannedMember#guild doesn't return promise when uncached anymore.
• Deprecate messageReactionInfo in favor of MessageReactionTypes
• Deprecate forumThreadReactionInfo in favor of ForumThreadReactionTypes

[pakkographic]

Not sure if it should be merged, it'd make the user experience somehow worse. It'd separate the code in two parts if using message.member for example.

Before:

client.on("messageCreate", (message) => {
   const member = await message.member;
   // anything
});

After:

client.on("messageCreate", (message) => {
     if (message.member instanceof Member){
         // anything
     } else {
        // something else.
     }
});

[pakkographic]

The guided api lacks of information, we cannot rely on cache for now. PR Postponed.

[pakkographic]

solution was found.